First android phone, Note 2, first root

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http://forum.xda-developers.com – Hey there, this is my first android phone and well,,, I do not fully understand the meaning of root. I do want to delete some of my stock apps and what not so i rooted my device from a tutorial, but I don't know where to go from here. I looked at a lot of forums on roms and backup and what not, but I just do not understand any of these technicalities, but really want too. Can someone tell me how to delete and my stock apps and how to customize my phone? Thank you! (HowTos)